@wordpress/block-library/build-style/categories/style.css

Block library for the WordPress editor.

.wp-block-categories {
  box-sizing: border-box;
}
.wp-block-categories.alignleft {
  /*rtl:ignore*/
  margin-right: 2em;
}
.wp-block-categories.alignright {
  /*rtl:ignore*/
  margin-left: 2em;
}
.wp-block-categories {
  /* Only apply the text align on dropdowns, not lists. */
}
.wp-block-categories.wp-block-categories-dropdown.aligncenter {
  text-align: center;
}

:where(.wp-block-categories__label:not(.screen-reader-text)) {
  width: 100%;
  display: block;
}